package com.java.netty;

import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.http.HttpServerCodec;

/**
 * @author jiangli
 * @date 2019/10/27 23:30
 * 初始化器,channel注册后,会执行里面相应的初始化方法
 */
public class ServerInitializer extends ChannelInitializer<SocketChannel> {
	@Override
	protected void initChannel(SocketChannel socketChannel) throws Exception {
		//通过SocketChannel去获取对应的管道
		ChannelPipeline pipeline = socketChannel.pipeline();
		//通过管道添加handler
		//HttpServerCodec是由netty自己提供的助手类
		//当请求到服务端,我们需要做解码,响应到客户端做编码
		pipeline.addLast("HttpServerCodec",new HttpServerCodec());
		//添加自定义的助手类,返回"hello netty"
		pipeline.addLast("customHandler",new CustomHandler());
	}
}
